In the anticipation and aftermath of natural disasters, those in their path face difficult choices: To stay, or to leave? To relocate, or to rebuild in areas prone to the risk of property damage, which is predicted to become more acute as climate change progresses?

Communities around the country grapple with what to do with their vacant and abandoned buildings, which, over time, can become eyesores. Not only are dilapidated buildings ugly, they can hurt the value of surrounding property and become hangouts for drug dealers, prostitutes and the homeless. Elected leaders know they are also major barriers to revitalizing urban areas such as downtown shopping districts and low-income neighborhoods.

As children, we were taught sharing is caring. Turns out it’s also good for business. Opportunities abound to monetize goods and services through joint use: Share your apartment with strangers through room rental services like Airbnb. Turn your car into a taxi service. Wait in line for people who are willing to pay to avoid queueing themselves.